Convicted murderer John Cannan was questioned about the disappearance but as the investigation fails to bring up any credible leads, Suzy Lamplugh is officially declared dead in 1994.

Over the decades, police have chased up a number of leads, including checking the prosecution files of vile Suffolk Strangler Steve Wright who knew Suzy in the 80s, but no other evidence linked the serial killer to the crime.

LINDA COOK

Linda Cook was raped and strangled in a brutal killing later dubbed the Cinderella Murder

Barmaid Linda, 24, left the Portsmouth home she was staying in to visit a friend nearby in December 1986.

She was raped and strangled in an area of wasteland, and her attacker stamped on her several times with such force that her jaw and spine were fractured, her larynx crushed, and imprints of his right athletic shoe were retained on her abdomen.

Linda's brutal attack lasted 15 minutes and her naked body was discovered later the same day in a horrific killing later dubbed the Cinderella Murder.

Seaman Michael Shirley, 18, was caged for life for the barmaid's murder but was released after 16 years in jail - the first time a UK court quashed a previous conviction on the basis of presentation of new DNA evidence.

ROBERT PAKINGTON

London merchant Robert Pakington crossed the street from his home in Cheapside to attend the chapel opposite on the morning on November 13, 1536.

He was shot dead with a wheellock pistol in most likely the first ever murder committed with a handgun in London.

His murderer was never found, despite the 'gret rewarde' which was offered for information.

However, some historians have speculated that his killing might have been ordered by bishops in the city because he had spoken in Parliament against "the covetousness and cruelty of the clergy".

Police believe Adam was from Nigeria, and was murdered as part of a West African magic ritual.

Despite being potentially identified as Patrick Erhabor, a child brought to London from Germany after his parents had been deported back to Nigeria, nobody has been charged with his murder and the gruesome case remains open.